Superrigidity of actions on finite rank median spaces
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DOI: 10.1016/j.aim.2019.06.019
Abstract: Finite rank median spaces are a simultaneous generalisation of finite dimensional CAT(0) cube complexes and real trees. If $\Gamma$ is an irreducible lattice in a product of rank one simple Lie groups, we show that… read more here.
Keywords: superrigidity actions; rank median; cube complexes; finite rank ... See more keywords
Grothendieck Ring of Varieties with Actions of Finite Groups
Sign Up to like & getrecommendations! Published in 2019 at "Proceedings of the Edinburgh Mathematical Society"
DOI: 10.1017/s001309151900004x
Abstract: Abstract We define a Grothendieck ring of varieties with actions of finite groups and show that the orbifold Euler characteristic and the Euler characteristics of higher orders can be defined as homomorphisms from this ring… read more here.
Keywords: varieties actions; finite groups; actions finite; ring varieties ... See more keywords